#992 add codecov component (#993)

.travis.yml

 language: java
+sudo: false # faster builds
+
 jdk:
     - oraclejdk8
     - openjdk7
 
-script: mvn clean package
+script: "mvn cobertura:cobertura"
+
+after_success:
+  - bash <(curl -s https://codecov.io/bash)
\ No newline at end of file

README.md

 # Dubbo Project
 
 [![Build Status](https://travis-ci.org/alibaba/dubbo.svg?branch=master)](https://travis-ci.org/alibaba/dubbo) 
+[![codecov](https://codecov.io/gh/alibaba/dubbo/branch/master/graph/badge.svg)](https://codecov.io/gh/alibaba/dubbo)
 [![Gitter](https://badges.gitter.im/alibaba/dubbo.svg)](https://gitter.im/alibaba/dubbo?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
 ![license](https://img.shields.io/github/license/alibaba/dubbo.svg)
 ![maven](https://img.shields.io/maven-central/v/com.alibaba/dubbo.svg)

pom.xml

@@ -484,6 +484,18 @@ limitations under the License.
                     </execution>
                 </executions>
             </plugin>
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>cobertura-maven-plugin</artifactId>
+                <version>2.7</version>
+                <configuration>
+                    <formats>
+                        <format>html</format>
+                        <format>xml</format>
+                    </formats>
+                    <check />
+                </configuration>
+            </plugin>
         </plugins>
     </build>